World’s worst radioactive pollution was caused by nuclear reactor disaster which occured in

Question: World’s worst radioactive pollution was caused by nuclear reactor disaster which occured in
[A].

Arizona (U.S.A.)

[B].

Chernobyl (undivided U.S.S.R.)

[C].

Pensylvania (U.S.A.)

[D].

Moscow (U.S.S.R.)

Answer: Option B

Explanation:

No answer description available for this question.